asked Sep 10, 2002 at 9:11am
Hp HP LaserJet 4

HP LJ4 No Power/fan

My HP LaserJet 4 printer stopped running the other day. There is no display and no fan. Checked and replaced the power connection, even replaced the power supply... still nothing. Any ideas where I might look next?
Try formatter in a know working printer.
by unknown on Sep 10, 2002 at 5:11pm Add comment
I would've also gone for the power supply first. Since everything comes out of the DC controller, that would be your next try, although I've never seen one do that.
by moe on Sep 10, 2002 at 6:28pm Add comment
Any way to test it?
by unknown on Sep 10, 2002 at 6:49pm Add comment